enyart



Patented July l2, I898. R. C. ENYART.

JOURNAL BOX FOR ROTARY PUMPS.

(Application filed Mar. 17, 1398.)

2 Sheets-Sheet I.

(No Model.)

Inventor w S w Witnesses:

Attorney N0. 607,|l4. Patented July l2, I898.

R. C. ENYART.

JOURNAL BOX FOR ROTARY PUMPS.

(Application filed Mar. 17, 1898.) (No Model.) 2 Sheets-Sheet 2.

Inventor W 5% ea Attorney (HU N JHN ill I I111 F m x .u a

Witnesses:

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RALPH O. ENYART, OF CONNERSVILLE, INDIANA, ASSIGNOR TOTIIE P. H. 85 F. M. ROOTS COMPANY, OF SAME PLACE.

JOURNAL-BOX FOR ROTARY PUMPS.

SPECIFICATION forming part of Letters Patent No. 607,114, dated July 12, 1898. Application filed March 1'7, 1898. Serial No. 674,188. (No model.)

To aZZ whom it may concern: I

Be it known that I, RALPH C. ENYART, of Connersville, Fayette county, Indiana, have invented certain new and useful Improvements in Journal-Boxes for RotaryPumps, of which the following is a specification.

This invention pertains to improvements in journal-boxes for rotary pumps employed in drawing or forcing liquids or fluids, and the improvement will be readily understood from the following description taken in connection with the accompanying drawings, in which Figure 1 is a front elevation of the head of a rotary pump provided with a pair of myimproved journal boxes, one of the journalboxes appearing in transverse vertical section in the planes of lines a and b of Fig. 3; Fig. 2, a side elevation of the same; Fig. 3, a vertical section of the same in the plane of line of Fig. 1; Fig. 4, a horizontal section of the box in the plane of line cl of Figs. 1 and 3, and Fig. 5 a plan of the cap of one of the boxes.

In the drawings, 1 indicates the usual headplate of an ordinary rotarp pump employing two intermembering rotary impellers turning upon parallel axes; 2, openings therethrough for the shafts of the impellers; 3, the shafts of the impellers projecting outwardly through these openings, as usual, to provide the journals for the impellers and to receive the gears or other devices by means of which the impellers are to be driven; 4, the body of the box projecting outwardly from the head-plate 1 and being open at its top and presenting a vertical wall at each side of the shaft and presenting a floor at about the level of the lower periphery of the shaft, there being two of these boxes on the head-plate to accommodate the two shafts, the present description being, however, more conveniently confined the shaft and their upper and lower faces engaging, respectively, between box-cap 6 and the floor of box 4, the outer faces of these quarter-boxes being transversely inclined, so that the spaces between the outer faces of these quarter-boxes and the inner faces of the side walls of the box 4 are wider at their tops than at their bottoms; 9, side wedges for the quarter-boxes 8, the same fitting and engaging between the quarter-boxes and the side walls of box 4 and extending the length of the quarter-boxes 8 and having a vertical depth less than that of the quarter-boxes 8, so that these wedges may be forced down and the quarter-boxes adjusted inwardly; 10, setscrews screwing through the box-cap 6 and impinging upon wedges 9 and serving in adjusting those wedges downwardly; 11, studs screwed into the upper edges of wedges 9 and projecting up loosely through holes in the boxcap and provided with nuts above the box-cap, these studs with their nuts serving to unite the wedges 9 to the box-cap and serving as means by which the wedges may be adjusted upwardly or held firmly against set-screws 10; 12, the base quarter-box, its upper surface forming or carrying the base-quarter of the journal box engaging the shaft, this base quarter-box extending the length of recess 5 and having vertical side edges neatly fitting the side walls of recess 5, the lower surface of this base quarter-box being transversely inclined, so that the space between it and the floor of recess 5 is of greater vertical height at one side of the base quarter-box than. at the other; 13, the base-wedge, the same fitting and engaging the under surface of the base quarter-box and the upper surface of the floor of recess 5 and having a horizontal width less than that of the base quarter-box; 14, setscrews taking through a side wall of recess 5 and impinging against the deeper edge of wedge 13 and serving in adjusting the wedge to position to elevate the base quarter-box; 15, studs screwed separably but tightly into the deeper edge of wedge 13 and projecting out loosely through holes in the wall of recess 5 and having nuts exterior to that wall, these studs serving in moving wedge 13 toward setscrews 14 and in holding it firmly against those set-screws 16, oil-chambers formed below the floor of recess 5 and extending lengthwise thereof, these oil-chambers being formed by a downward prolongation of the walls of recess 5 and by a floor below the floor of that recess and by a vertical partition extending parallel with the shaft; 17, a pair of endless chains hanging from the shaft down into oilchambers 1t; 18, the floor of recess 5, forming also the roof of oil-chambers 16, and 19 chain-channels formed by grooves in the inner faces of side quartenboxes S and in the side walls of recess 5 and by connectinggroovcs in the lower face of the upper quarter-box carried by the box-cap, and by ports through floor 18 and the partition between the oil-chambers 16, and by notches in the side edges of the base quarter-box and wedge.

Rotary pumps of the class in question involve peculiar conditions regarding the journal-boxes of their impeller-shafts, owing to the fact that the two shafts should always maintain accurate relationship to each other and to the casing in which the impellers work and that the impellers are entirely inclosed within the casing, so that their relationship cannot be inspected, the delicate adjustment of the journal-boxes to compensate for wear of the boxes being effected only with reference to conditions which can be inspected from the outside of the casing of the pump. The method of assembling the parts and making the adjustments needs but little description in View of the showing of the drawings. All box parts being separated from the main structure, the shafts are held in proper relationship by their fitting within the openings 2 in the head-plate. Ooncentricity of the shafts with these openings indicates proper relationship of the two impellers to each other, and it is of importance that adjustments of the journal-boxes be so effected and maintained as not to destroy the original gaging characteristics of the openings 2.

In assembling the parts base-wedge 13 and base quarter-box 12 are to be inserted loosely into position by being pushed endwise into recess 5. Studs 15 are then to be screwed firmlyinto base-wedge 13. Set-screws 14 are then to be screwed in till the wedge causes the base quarter-box to rise and take a fair bearir g under the shaft and take the weight of the shaft and free it from base engagement in opening 2 and support the shaft concentrically in that openin The nuts upon studs 15 are then to be tightened, thus secur ing the wedge firmly in adjusted position against set-screws 14:. During all this adjustment the relationship of the shaft to opening 2 may be readily inspected. Side quarter-boxes 8 and side wedges 9 are then to be put in position and the box-cap applied and the latter made secure by its screws 7, after which side wedges 9 are to be adj usted'and secured in an obvious manner, so as to maintain the shaft in concentric relationship to opening The chains may best be applied before the box-cap is placed in position. The journal is oiled through ordinary oil-cups pro vided in the box-cap in the planes of channels 19, the oil-chamber 16 holding oil which the chains carry upward to the journal for distribution along its length.

I claim as my invention- In a journal-box for rotary pumps, the combination, substantially as set forth, of a headplate having an opening concentric with the desired position of the impeller-shaft, a box projecting outwardly from said plate and presenting a vertical wall at each side of the shaft and havinga floor below the axis of the shaft and having a recess below the shaft provided with a floor and vertical side walls,

a box-cap bolted to the tops of the side walls of said box and carrying the upper quarterbox of the journal-box, side quarter-boxcs disposed within said box between the floor thereof and said box-cap and having inclined outer surfaces, wedges disposed within said box between the side walls thereof and the outer faces of said side quarter-boxes, a base quarter-box disposed in the recess of said box below said shaft and engaging the side walls of said recess and having an inclined lower surface, a wedge disposed within said recess between the floor thereof and the lower surface of said base quarter-box, and screws for adjusting said wedges upon the inclined surfaces of their respective quarter-boxes. RALPH C. ENYAR'I.

lVitnesses:

L. E. BLINN, R. B. INSLEY. 

